About 2 weeks ago, I had one of my RIR hens go missing. There, in the morning; gone, at roost time. Just disappeared. I still haven't found her. Well, all of the RIR hens stopped egg production, mid August, and started their moult, so I didn't think she had gone broody in some hidden nook of my weedy, junk ridden 3/4 of an acre. I looked everywhere, too. This afternoon, I see my dog playing with something, in the yard. Something small and yellow...I hollered at her and she drops this baby chick. Obviously, only one or two days old. I know that none of the pullets have gone broody, because I've been gathering their eggs, regularly, and I also see them in the yard, throughout the day. I guess the RIR hen could have snuck off to the neighbor's property, but to not see her, at all, in two weeks, is strange.